Figure 1.

(a) Contrast-enhanced axial CT scan of the heart at the level of the aortic valve in a 62-year-old female patient with loculated pericardial effusion. The mean attenuation value of the effusion (circle) was –2 HU. Pericardial fluid was demonstrated as a transudate after pericardiocentesis. (b) Contrast-enhanced axial CT scan of the heart at the level of 4-chamber view in a 19-year-old male with loculated pericardial effusion. The mean attenuation value of the effusion (circle) was 30 HU. The pericardial fluid was shown as an exudate after pericardiocentesis